--- /dev/null
+ALTER TABLE group_auth
+ADD COLUMN group_id SMALLINT(5) UNSIGNED NULL DEFAULT NULL;
+ALTER TABLE group_auth
+ADD INDEX (group_id);
+ALTER TABLE group_auth
+ADD FOREIGN KEY (group_id) REFERENCES groups (id) ON UPDATE CASCADE ON DELETE CASCADE;
+
+ALTER TABLE group_auth
+ADD COLUMN group_strict BOOL DEFAULT FALSE COMMENT 'Whether to only accept member of the groups';